Paul Murdin Books

The Observatories of the Canaries

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Encyclopedia of astronomy and astrophysics online

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A comprehensive reference on astronomy and astrophysics with over 3,000 full text entries. Searchable by keywords, index terms and contributors. This resource is updated quarterly and new entries...

Murdin invites readers to join him in exploring an extraordinary array of evidence on how life developed on Earth, and how it could have developed on other planets. He examines who forms it might t...

Catalogue of the Universe

By Paul Murdin

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Catalogue of the Universe

By Paul Murdin

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Colours of the Stars

By David Malin, Paul Murdin

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Supernovae

By Lesley Murdin, Paul Murdin

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How to Convert ISBN-10 to ISBN-13 (and Vice Versa): A Complete Guide

If you’re in the world of books—whether as a publisher, librarian, bookseller, or avid collector—you’ve likely come across the terms ISBN-10 and ISBN-13. Understanding these formats and knowing how to convert between them is essential for maintaining consistency and compatibility in book records. In this post, we’ll cover everything you need to know about ISBN conversions, step by step.

What is an EAN and How Does it Relate to an ISBN?

If you’ve ever purchased a product online or in a store, you’ve likely come across a barcode. Behind these barcodes lies a standardized system that makes modern commerce possible. Two key codes often encountered are the EAN (European Article Number) and ISBN (International Standard Book Number). But what are they, how are they connected, and why are they so crucial? Let’s explore.